Power-transmitting apparatus.



WARREN H. 'icIUNGERJSORD, OF

`eIIICaaO, ILLINOIS, AssIGNoR To FRANK Ivi. PETERS, OF CHICAGO, ILLINOIS.

Application filed June 24, 1912.

To ZZ fir/wm it may concern:

Be it known that I, WARREN H. HUNGER- Fono, a citizen of the United States, residing at Chicago, Cook county, in thev State of Illinois, have invented a new and useful Improvement in Power-Transmitting Ap paratus, of which the following is a full, clear, and exact specification.

My invention relates to improvements in speed changing or power transmitting a.p paratus, and the same has for its object more particularly to provide Aa simple, efficient and reliable apparatus by means of which a driving mechanism may communicate or transmit power to a driven mechanism, and be so controlled that any speed from maximum or full speed, (the speed at which the driving'inechanism operates) to minimum speed or complete rest may be transmitted to or attained by the driven mechanism. r

Further said invention has for its object to provide a speed changing apparatus which may be readily interposed between a driving mechanism and a driven mechanism,

and which will permit of the slightest differences or variations in speed being transmitted from said driving mechanism to said driven mechanism. 1

Further said invention has for its object to provide an apparatus which consists of a fluid casing, which' may be readily attached to. or connected with the driving shaft, and which is provided wi th valve means whereby the circulation. of fluid within said casing may be so controlled or retarded that the speed with which said casing rotates relatively to the driving shaft may be definitely and positively regulated and maintained.

Further said invention has for its object to provide a simple, etlieient and reliable apparatus in which the operating parts are all 'nclosed in a suitable casing, containing the operating Huid.

To the attainment of the aforesaid objects and ends, my invention consists in the novel details ofi/construction, and in the combination, connection and arrangement of parts hereinafter more fully disclosed and then pointed out in the claims.

In the accompanying drawings, forming .part of this specification, wherein like numerals of reference indicate like parts, Figure l is a side View showing one form of apparatus constructed according to and embodying my said invention; Fig. 2 is a see-- Specicatidn of Letters Patent. g

Ior as a pulley wheel.

Patented Sept. 2S, 1915. serial No. 705,590. I

tion ofthe same, on the line 2 2 of Fig. 1; F 3 vis a similar view, on the line 3 3 of Fig. 1; Fig. 4 is an enlarged central lon`- gitudinal section taken essentially on the line 4 4 of Fig. 2, and Fig. 5 is an enlarged transverse section taken on the line 5 5 of Fig. 4.

ln said drawings,- 10 designates a base'at the opposite ends of which are secured supports 11, 11, provided at their upper ends with bearings 12, 12a. Intermediate said hearings is, mounted a cylindricalcasing 13, whose outer surface may act as a gear wheel The said casing is composed of a casing portion .14, and a cover portion 15, which is secured along its edge by bolts 16, 1G, to the open end of said casing portion'14. A thin sheet of packing material 17 is interposed between said cover portion 15 and casing portion 14 in order to form a fluid tight joint.

The casing portion 14 is provided with an integral shaft section 14a, which is supported adjacent to its outer end in the bear- .ing 12a, and the cover portion 15 is provided with a tubular shaft section 15a, arranged in alinement with the shaft section 14a of the casing 14, and supported adjacent to said cover portion 15 in the bearing 12.

The casing portion 14 is provided upon its inner side with a segmental partition 18 which is arranged concentrically within said casing and forms about two-thirds of the arc of a circle. The said partition extends longitlldinalljr of the casing portion from the rear wall thereof, and has its front edge engaged by the rear side of the cover portion 15.

The inner side of the casing p ortion 14, between the ends of the segmental partition 18, is provided with a semi-circular recess 14", in which works a cylindrical member 19, provided at its opposite ends with short shaft sections or trunnions 20, 20, which are respectively. supported in bearings S51, 21"L provided in the cover portion 15 and casing portion 14. The said cylindrical member is provided with a longitudinal recess 19, and close to the forward end of said cylindrical memberf- 19 is arranged a small gear 22, which isf/@vcd upon the'as'hort shaft section or trunnion 20a.

V20 denotes a lar-'re cylindrical member which is centrally .nounted in the casing.y portion 14. The said cylindrical y,member member 19.

of sald cylindrical member 20 1s arranged a y upon the end of said arnr is provided Sectionfef 36 denotes a spiral groove ai:

sitely-arranged ysegmental-slts 3Q, 393"ther 2O is fixed upon a shaft 24 `which has its louter end supported in ythe tubular shaft section 15 extending from the cover section l5,` and its inner end supported in the recess 1% provided 'int-he innerend of theshafty section 1i, extending from the casing portion 14. i

The large cylindrical nie1nber20 is pro vided with two oppositely arrangt-:d` longitudinal Yanes 25, 25, which lare co-extensive in length withsaid cylindrical member 20, and are adapted to mesh with the,longitudi-k nal recess 19a infthey smaller cylindrical Adjacent -to vthe forward end lareer ear 2G which is fixed u on the shaft 24, pand meshes with fthe slnallergear The proportion of the gears `2G, and is Vsuch'tliatfthefcylindrical member 19 and its gear 2Q willxnalte two complete revolutions! to one" ot'the largeigear, and its cyln'r `drical member-20. i The inner surfacev of the cover portionfl kop ositeto the gears 2G and 22, is recessed su' ciently rto receive said "gears, iny order that the cylindrical members 19, 20, will extend the ulldepth of the casingwportion` le.

- 2 1 denotes a tapering tition, and ata point diametrieallyoppositey.

to the cylindrical iniember 19.` Q f A `The valve 27 is provided at the forward-` end of the casing .with a reducedkscrewthreaded portionQF?, uponr which are iittcdfl` i n They said opening' sealed with y'a screw plugthrough l. valve 27 is also-pyovded with aflongitndi" Va]fwash'er 28,'and ynuts 29,1 29a.'

naly opening` `30, 'and midway between Lthe ends of said opening'said valve is provided witha transverse web 31, `which 1s designed`V to reinforce the 'sides 'of said valve,land pre rmi', projecting end foi said valvcfVand i a segr1 lnientalrack-SSQ n A v Upon the` shaft section 14g isarranged a" sleeve section yrtwwhich 'is adapt` vided'insaid shaftseetion lfi'and sleeve ranged in said sleevejsection 3e, and de' notes a rcu'cuniierentially Iegroovcd collar pro .pt if vided attheouter end or seid sleeve .34.

38 denotes a` sleeve si `roundinp, the sleeve nniercnd withfa 'Hangs `38a havin@1 in, ,through f patenti bolts."A 40,' 4 0,

y valvewhich extends through a. suitableopening arranged 1n the casing and cover portions, and passesr said hollow-shaft section 15a;

'ad t() 'for y tatewithsaid shafnandwhich is ,also adapt-`- i ed to l,be reciprocated `uponsaid shaft owing to the `spline engaging with grooves prof located" L: in, Fig

which are so secured in thefouter side of the casing-14 as to permit of said sleeve 38 `losing partially rotated upon the sleeve 34,

and to be secured to its adjusted position i by the said bolts e0, i0. One portion of the 4kgroove 36 inthe sleeve 3d, and is provided at its inner end with an anti-friction roller 42.

'43 denotes an ari'n having its .lower end pi'votally secured in a bearing' .di fixed upon the base l0, adjacent tothe bearing support 12, and having its'` 'upperl end bifnrcated and provided with studs 45; fk5, extending intoy the circumferential groove 3750i the `collar onthe ysleeve '38. The upper-bifurcatedendsv of `said a"r1n 43. are connected by a trai'isverse member e6, which has its ends pivotal-ly secured intermediate the bifurcateden'ds lofsaidarin d3.` 1 Y y l` 47, denotes 'an adjusting screw havingits innerendv revolubly securedin thetrans- 1 verse inernbenll ofthe arm 43, and its .other end extending through a split bearing ,4:9

formedlas sa" part of thebearinglQ and providedywith a hand wheel 8.5 'Ihesplit bearing Lllis provided with a-screw or bolt "5U, whereby said bearing 49 may be clamped together in `order j 0" secure 'the screw 47 'to lts adjusted position. 51. denotes' a packing arranged upony the' shaft 15 which-is maintained in placeb'y a..

nut 52 screwed upon the threaded end of,"

Thejcasingportion Mis providedwith en 'which the voil or other liquid for operating 'jthefapparatus may be introduced inte they cz sing. i Upon the outer end ofthe shaft 24 is iediafpulley lwlii-ch may be connected`-K forni aV pulley. It' will ofcourse he lobvious lthat instead of takingthe `power from said casing l, a pulley or gearmaylbelfixed u on the shaft ysection 15:L `or a carina f he I ,a 4

appliedqto orformcd upon'the outer surface ot the-casing,*portion v14:. `Further ,it will also be obvious thatv power may lie l applied to the shatf'ft by meansfcff- 'a `pulley or gearl i l any desired `distance from thereon at ata tionic tfiearroirsfflfigs. 2, 3 andai, andas suine also ,that thevalve 27 is `open,fas shown 5,1 theliquid in the casing 13 I "an thefappa ratl'is i is sich A uferassiiiiie that power isbeing apA l plied. to' the pulley` i-ion the shaft 24, and .:Thesaid sleeve die provided at its y i ieri will be caused to be circulated therein in the 'direction of the arrows Fig. 5, by the rotation of the cylindrical members 19 and 20, and the recessand vanes formed thereon. As the valve 27 is open, and the liquid can circulate freely within the casing, the said casing will remain substantially at rest. When it is desired to cause said casing to rotate in order to transmit power to the mechanism to be driven, it merely becomes necessary to shift the upper end of the arm 43 inward toward the casing 14 by actuating the adjusting screw 47. As said arm 43 is moved inward it causes ,the sleeve 34 to be moved inward also, and in being so moved it will cause the outer sleeve 38 to be par tially rotated upon said sleeve 34 by the action of the roller 42I upon the screw 42 in the sleeve 3,8 following the curvature of the spiral groove 36 lin the sleeve 35. As the sleeve is rotated, the gear teeth 41 thereon being in mesh with the rack 33 on the arm 32 secured to the valve 27, will cause said valve to be closed partly, and thereby retard the circulation of the liquid within the casing 13. The result of this retardation is that the casing 13 will be caused to rotate upon the shaft 24 at a speed less than that of said shaft.

By gradually closing the valve 27 through the medium of the screw 47 and connected parts, the circulation of the liquid within the casing becomes retarded, and in being so retarded the speed of the casing 13 is gradually increased up to the point where the valve 27 is completely closed, and circulation of the liquid in the casing 13 completely interrupted. When this occurs the casing 13 will rotate with substantially the same speed as the shaft 24.

y It will of course be understood that by op-I erating the adj usting screw 47, the slightest variations in speed may be obtained, varying from minimum to` maximum.

An advantage accruing to this form of apparatus is that the speed with which the same operates may be positively controlled throughout its entire range of speeds, and that no loss of power can result through slip ing.

aving thus described my said invention, what I claim and desire to secure by Letters Patent is:

1. An apparatus of the character described, comprising a liquid-containing casing, a plurality of connected compartments therein forming,r an endless passage, means Afor 'controlling the flow of fiuid through `said endless passage, a-- rotary piston disposed within said casing, blades on said rotary piston forming spaces between the same which are a multiple of the'width of said blades, an abutment, in rolling engagement with said piston, arranged intermediate the communicating ends of said compartments and serving to directthe iow of fluid from one of said compartments ditary piston located within the inner' of said v compartments, blades on said rotary piston forming spaces between the same which are a multiple of the width of said blades, and

a rotating abutment-in rolling engagement with said piston, located intermediate the communicating ends of said compartments, substantially as specified.

3. An apparatus of the character described, comprising a liquid-containing casin", a. plurality of concentric, connected compartments therein forming an endless passage, valve means for controlling the iow of fluid through said endless passage, a rotary piston located within the inner of said compartments, blades extending from said piston and forming spaces between the same which are a multiple of the width of said blades, and a rotating, cylindrical abutment provided with means for receiving the blades on said rotary piston arranged intermediate the adjoining, communicating ends of said compartments, substantially as specified.

4. An apparatus of the character de- A scribed comprisingva liquid-containing casing, a plurality of connected compartments therein forming an endless passage, a valve for controlling the flow of fluid through said endless passage, a rotary piston disposed within the inner of said compartments, a pair of blades on said rtary piston, and a rotating abutment provided with Ameans for receiving said blades, and arranged intermediate the adjoining 4communicating ends of said compartments, and out ot' the direct path of flow of said fiuid and serving to direct the flow of fluid. from one of said compartments directly into the other of said compartments, substantially as specilied.

5. An apparatus of the character described comprising a liquid-containing casing, a plurality of concentric, connected compartments therein forming au endless passage, a` valve for controlling the fiow of fluid through said endless passage, a shaft supported within the inner of said compartments, a cylindrical member mounted upon said shaft, a pair of projecting blades on said cylindrical member, and a rotating abutment provided withalongitudinal groove adapted to receive the blades en said cylindrical member; said rotating abutment being located intermediate the adjoining,

said passage for controlling the-flow of fluid l communicating ,ends of said compartments, and arranged out of the direct path of flow of said fluid and serving to-direct the llow of said fluid from one of said-compartments into the other of said compartments, substantiallir as specified.

(i. .\n apparatus of the character described comprising a liquid-containing casing having a plurality of concentric, connectcd compartments therein forming an endless passage, a valve for controlling the* flow of l uid through said endless passage, a1

shaftsupported within the inner of said comjmrtments, a cylindrical member inount= ed upon said shaft and revoluble therewith, a pair of oppositely arranged blades on said cylindrical member, a rotating abutment provided with a longitudinal groove adapted to receive the blades on said cylixidrical member; said rotatine abutment being located intermediate tlie adjoining coniiiiiinicatiiig ends of said compartments and ,out of the path of flow of said fluid, and

serving to direct the flow of said fluid from one of said compartments into the other of said coinpartments,iand coperatng means fixed partly with. said cylindrical.member and partly with said abutment for maintaining said cylindrical member and said abutment in operative register, substantially as specified.

7. An apparatus of thek character described comprising a liquidfcontaining casing, a plurality of concentric, connected compartments therein, a valve arranged in therethrough, means for actuating said valve, a shaft supported in said casing with in the inner of saidcompartments, a cylindrical member and a gear mounted upon said shaft and revoliible therewith, a air of oppositely extending blades arrange upon said cylindrical member, a shaft mounted in `said casing without said inner coinpartment and arranged intermediate the adjoining, communicatingr ends of said compartments, a c iy'lindrical abutment fixed upon said last named shaft and rovided with a longitudinal groove adapte successively to receive the blades on said c lindrical ineinhcr as said cylindrical mem ier rotates; and a gear fixed upon said cylindrical abutment and meshing with the gear on said first- 4named shaft whereby to maintain said cy- Y pair of o positely arrange (joining communicating ends of said coinpartments and out' of the path of floiv of lliiid; said revoluble abutmentbeing provided with a groove adapted to receive the blades on the member fixed on said shaft, means for maintaining said first-named member and said revoluble abutment in operative register, a Valve arranged in said casing and traversing the passage therein, means ior actuating said valve, and means for securing said valve to its adjusted position, siibstaiitially as specified.

9. A11 apparatus of the character de s cribed comprising a shaft, a cylindrical liquid-containing casing loosely mounted thereon, a plurality of concentric compare ments forming an endless passage therein, a cylindrical member fixed upon said shaft, a pair of blades on said cylindrical member, and a c lindrical abutment coperatiiig with said cy indrical member arranged intermediate the adjoining, communicating ends of said com artments and provided with a longitudina Groove to receive the blades on said cylindrical member, a valve arranged in said casin and traversing said endless passage therein, whereby to control the passage of fluid through said endless passage, a sector secured to said valve, a segmental gear arranged upon said casing and meshing with said sector, means for actuating said segmental gear to operate said valve, and means for securing said valve to its adjusted position, substantially as specified.

10. An apparatus of the character described comprising a shaft, a cylindrical liquid -containingl casing loosely mounted thereon, a lurality of concentric compartments forming an endless passage therein, a cylindrical member fixed u on said shaft, a blades on said cylindrica member, a gear fixed upon said shaft adjacent to one end-of said cylindrical member, a relatively smaller cylindrical abutment arranged intermediate the adjoining communicating ends'of said conipartments, and in rolling engagement with said v cylindrical member, shaft seetoiis at thc ends of said cylindrical abutment support ed in said casing, said cylindrical abutment having a longitudinal groove therein adapted to receive the bliides on said cylindrical member, a gear arran ed adjacent to one end of said cylindrica abutment meshing with the gear on said cylindrical member, a valve arran ed in said casing and travers ing said en less passage therein, means for actuating said Valve, and means for securing said valve to its adjusted position, substantially as specified.

1 1.y An apparatus of the character dcscribed comprising a shaft, a cylindrical liquid-containing casing, a recessed shaft. section extending centrally from one end ol said casing and inclosing one end of said lli'i shaft, a never for said casing having a sleeve semi-nn extending iherefrmu and -sui'roumling`l said lirsnmnenl shaft, a segmental parition in said easingy 'forming a plurality nl concentric, eonneeted passages therein,

. means for supporting said casing and shaft therein, a cylindrical member fixed upon said inet-named shaft and arranged to r0- ae Within .said segnnenlal pariion, a pair of npposilelj arranged longitudinal blades on said cylindrnl member, a large gear ixecl ai one end of said cylindrical member, a Smaller cylindrical abutment arranged adjacent to he ends of said segmental partiition intermediate the adjacent, eoxnn'iunicating ends of said comparnnents, and in rolling' engagement with said, eylindrieal ineinber, said .'fylindrcal abutment having is 0ppnsil'e e :nimm-ted in said easing, a gear lined al one end of said 'cylindrical abutniens and meshing with the gear on said larger cylindrieal member, a `valve mounted in said' casing and raver-sing Said endless passage therein, means for actuating Said valve, and means Enr securing` Said valve to its adjusted punition. substanially as Speci- Signed at the city m" Chieage'i, ,'(oulc EDMUNDy P. KELLY. 

